Talvez deva tentar algumas variações de ortografia:
efficient python » efficient method (Expandir a busca), efficient action (Expandir a busca), efficient methods (Expandir a busca)
2a programming » 2 programming (Expandir a busca), vba programming (Expandir a busca), dna programming (Expandir a busca)
coder python » codigo python (Expandir a busca), compra python (Expandir a busca)
v3 efficient » an efficient (Expandir a busca), _ efficient (Expandir a busca), of efficient (Expandir a busca)
coder coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (Expandir a busca)
python 2a » python _ (Expandir a busca), python c (Expandir a busca), python of (Expandir a busca)
python v3 » python _ (Expandir a busca), python c (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder python 2a programming ) OR ( python v3 efficient python programming ))~.